• Windows Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a skilled and motivated **Windows Systems Administrator ** to join our team of top Information Technology and Analytic professionals in ... Certified Professional (VCP) credential **Security Clearance Requirements** + An active/current TS / SCI with Polygraph is required. **Physical Requirements** +… more
    ManTech (12/03/25)
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  • Software Engineer/ Systems

    Cinteot (Springfield, VA)
    …Linux Administration experience Education: Bachelor (or 4 years additional experience) Security Clearance: Top Secret with SCI and Full Scope Poly Benefits: ... Software Engineer / Systems Administrator (location: Springfield, VA) The... systems . Applicant selected must possess a current TS / SCI with Full Scope Poly clearance (government… more
    Cinteot (11/06/25)
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  • Systems Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking an experienced ** Systems Administrator ** to join our team in supporting mission-critical IT infrastructure. This role is ideal ... for a professional with solid systems administration expertise, particularly in pipeline automation and/or VMware...of a degree. + US Citizen with an active TS / SCI with Poly security clearance. + CompTIA… more
    Leidos (01/13/26)
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  • Senior IT Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include ... manuals or similar documentation. **Clearance Requirements:** + Must have a current/active TS / SCI w/Polygraph. **Physical Requirements:** + Must be able to… more
    ManTech (12/03/25)
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  • Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated and skilled **Senior Systems Administrator ** to join our sustainment team in **Chantilly, VA.** In this role, you will support a ... systems and group policy configuration **Clearance Requirements:** + Active TS / SCI with Polygraph is required for this position **Physical Requirements:**… more
    ManTech (12/13/25)
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  • IT Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include but ... user-friendly technical documentation. **Clearance Requirements:** + Must have a current/active TS / SCI w/Polygraph. **Physical Requirements:** + Must be able to… more
    ManTech (11/19/25)
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  • Sccm/Mecm Systems Administrator

    Leidos (Alexandria, VA)
    …operations across multiple enclaves, classifications, and time zones. The System Administrator provides systems and software Operations and Maintenance (O&M) ... **Description** Leidos is seeking an SCCM/MECM System Administrator to support a large enterprise IT contract...government contracts we support, US Citizenship is required. + TS / SCI with Polygraph required for Position OR… more
    Leidos (12/08/25)
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  • ServiceNow Administrator /Developer…

    V2X (Springfield, VA)
    …Suite and SharePoint. Clearance Requirements: + This position will require an active DoD Top Secret with SCI eligibility. The position will require the ... We are hiring a great opportunity for a ServiceNow Administrator / Developer - active TS / SCI...schemas, and data modeling. + Shall possess ServiceNow Certified Systems Administrator Certification. + Shall have experience… more
    V2X (11/20/25)
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  • Expert Systems Administrator

    Leidos (Chantilly, VA)
    …Work within the parameters of Agile & Scrum methodologies **Required Quals:** + Active TS / SCI with Polygraph + BS degree and 12+ years' experience. Additional ... **Description** Leidos is seeking a System Administrator for a 200+ FTE technical development program...while ensuring secure, reliable, and uninterrupted availability of IT systems . This role works directly with implementation teams to… more
    Leidos (01/15/26)
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  • Senior Systems Administrator

    Leidos (Chantilly, VA)
    …service that provides attribute data via an LDAP interface to hundreds of various Sponsor systems Required Qualifications + Active TS / SCI with Polygraph + BS ... **Description** Leidos is seeking a System Administrator for a technical development program supporting the...+ Must be an expert in using Linux-based operating systems + Must have strong Bash skills + Must… more
    Leidos (01/09/26)
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